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15 September, 21:48

Solve 4 (r+1.9) - 9r=12.2 r = type integer or decimal rounded to the nearest hundredth as needed

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  1. 16 September, 00:08
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    4 (r+1.9) - 9r=12.2

    4r + 7.6 - 9r = 12.2

    -5r = 12.2 - 7.6

    -5r = 4.6

    r = 4.6/-5

    r = - 0.92
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